A UFO is an object or light seen in the sky or on land, whose appearance, trajectory, motions, lights and colors do not have an obvious conventional or natural explanation, and which cannot be explained, not only by the original witness, but by scientists or technical experts who try to make a common sense identification after examining the evidence.

Center For UFO Studies

...It is my considered opinion, as a scientist who has devoted many years to its study, that the UFO phenomenon is real and not the creation of disturbed minds, and that it has both grave and important implications for science and for the political and social well-being of the peoples of this Earth.

About the Author

UFO ETI Files is a developing online exchange for reports, documentation, evidence, history, hypothesis and discussion of UFO phenomena and ETI contact. We bring useful things together on this subject in an open-minded, concise and easy to navigate platform.